/**
 * Copyright (C) 2008, University of Manchester
 *
 * Modifications to the initial code base are copyright of their
 * respective authors, or their employers as appropriate.  Authorship
 * of the modifications may be determined from the ChangeLog placed at
 * the end of this file.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package uk.ac.manchester.cs.owl.lint;

import org.semanticweb.owlapi.apibinding.OWLManager;
import org.semanticweb.owlapi.lint.LintManager;
import org.semanticweb.owlapi.model.OWLOntologyManager;
import org.semanticweb.owlapi.reasoner.OWLReasoner;

/**
 * @author Luigi Iannone The University Of Manchester<br>
 *         Bio-Health Informatics Group<br>
 *         Feb 13, 2008
 */
public class LintManagerFactory {

    private final OWLOntologyManager ontologyManager;
    private final OWLReasoner reasoner;
    private static LintManagerFactory instance = new LintManagerFactory(
            OWLManager.createOWLOntologyManager(), null);

    /**
     * @param ontologyManager
     * @param reasoner
     */
    private LintManagerFactory(OWLOntologyManager ontologyManager,
            OWLReasoner reasoner) {
        assert ontologyManager != null;
        this.ontologyManager = ontologyManager;
        this.reasoner = reasoner;
    }

    public LintManager getLintManager() {
        return new LintManagerImpl(getOntologyManager(), getReasoner());
    }

    /**
     * @return the ontologyManager
     */
    public OWLOntologyManager getOntologyManager() {
        return ontologyManager;
    }

    /**
     * @return the reasoner
     */
    public OWLReasoner getReasoner() {
        return reasoner;
    }

    /**
     * @return the instance
     */
    public static LintManagerFactory getInstance() {
        return instance;
    }

    /**
     * Default factory method
     * 
     * @param ontologyManager
     *        The OWLOntologyManager. Cannot be {@code null}.
     * @param reasoner
     *        The reasoner
     * @return the default LintManagerFactory
     * @throws NullPointerException
     *         if the input OWLOntologyManager is {@code null}.
     */
    public static LintManagerFactory getInstance(
            OWLOntologyManager ontologyManager, OWLReasoner reasoner) {
        instance = new LintManagerFactory(ontologyManager, reasoner);
        return instance;
    }

    /**
     * @param instance
     *        the instance to set
     */
    public static void setInstance(LintManagerFactory instance) {
        LintManagerFactory.instance = instance;
    }
}
